Red Eye reduction not functioning as expected
Whe I use the Red Eye reduction in Photos on my Mac, both Auto and Manual, the red eye reduction tool appear appropriately, they select the red eye appropriately, and they seem to apply the function, but the pupils are still red. There is no change whatsoever to the picture. Changes using other tool in Photos edit do successfully change the photo. Just not the Red Eye reduction.
MacOS Version 10.13.6
Photos Version 3.0
Iphone 8
iOS 12
IMG is .jpg original
iMac, OS X El Capitan (10.11), 3.1Ghz i7; 8GBRam;TmeCap;iPad/Phone